Luke Riordan, MD
NPI 1639708662 · Hospitalist Physician · Middletown, NY
Enrolled with Medicare as Practitioner - Hospitalist · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Luke Riordan, MD is a Hospitalist Physician provider in Middletown, NY (NPI 1639708662).
Provider details
- NPI number
- 1639708662
- Entity type
- Individual
- Primary specialty
- Hospitalist PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 324025 (NY)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
6 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
3 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
1,209 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 517 | $83 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 201 | $125 |
| Hospital Discharge Day Management, More Than 30 Minutes99239 | 168 | $120 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 75 | $181 |
| Subsequent Hospital Care With Straightforward Or Low Level of Medical Decision Making, Per Day, If Using Time, at Least 25 Minutes99231 | 72 | $52 |
| Hospital Discharge Day Management, 30 Minutes Or Less99238 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 13 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 33 | — |
| Spironolactone | 24 | — |
| Amlodipine Besylate | 22 | — |
| Carvedilol | 20 | — |
| Cefpodoxime Proxetil | 18 | 18 |
| Prednisone | 18 | 13 |
| Apixabanbrand: Eliquis | 17 |
Practice location
Mailing address
Additional practice locations (2)
- 68 Harris Bushville RdHarris, NY 12742Phone: (845) 333-8484
- 101 Nicolls Rd Rm 20Stony Brook, NY 11794-0001Phone: (631) 444-7411Fax: (631) 444-2493
Registry dates
- Enumerated
- 2020-04-02
- Last updated
- 2024-02-26
- Certified
- 2024-02-26
Frequently asked questions
- What is Luke Riordan's NPI number?
- Luke Riordan's National Provider Identifier (NPI) is 1639708662, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Luke Riordan's specialty?
- Luke Riordan is listed in the NPPES registry with a primary specialty of Hospitalist Physician (Allopathic & Osteopathic Physicians).
- Where is Luke Riordan located?
- Luke Riordan's practice location on file with NPPES is 707 E Main St, Middletown, NY 10940-2650.
- What is Luke Riordan's phone number?
- The practice phone number listed in the NPPES registry for Luke Riordan is (845) 333-3370.
- Does Luke Riordan accept Medicare?
- Luke Riordan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Luke Riordan's NPI active?
- Yes — Luke Riordan's NPI (1639708662) is active in the NPPES registry as of the last update on 2024-02-26.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.